SJ4 Mini Laser Level
With the ability to project either a 360 degree closed rotational laser datum line, or a vertical one.
All operated by an electric engine, the user can enjoy high accuracy with bright and clear datum lines that are reliable and very stable.
SJ4 can also shoot instruction laser lines according to pre-designated point, with free adjusting rotation speed.
I. Instrument principle and application
SJ4 Mini Laser Level is a new type of integral instrument combined of optical, mechanical and electrical functions. A plane or a line can be defined by visible rotating laser beam, which is used to determine direction, obtain a datum horizontal line or plumb line.
Ⅱ Specification
Laser wave | 635nm red laser |
Laser diode power | <1mw |
Horizontal accuracy | ±1′ |
Working range (radius) | 20m |
Horizontal vial accuracy | 3'/2mm |
Vertical vial accuracy | 30'/2mm |
Voltage | 4.5v |
Power supply | 6 pcs 5AA alkaline battery |
Continuous working time | 12h |
Working temperature | -10℃~+40℃ |
Dimension | 115mmX130mmX145mm |
Weight | 0.7Kg |
Connection screw | 5/8” |